Methotrexate EP Impurity F CAS 51865-79-3

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.51865-79-3
Molecular FormulaC20H22N8O5
Molecular Weight454.44 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Methotrexate EP Impurity F CAS 51865-79-3 chemical structure

Description

CATO supplies Methotrexate EP Impurity F (CAS 51865-79-3), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H22N8O5. Molecular weight: 454.44 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC20H22N8O5
Molecular Weight454.44 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>90%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Nitrogen Atoms8

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